| Title | The traffic department coordinates to promote the LED road light cost and benefit research |
| Dept | Transportation Energy and Environment Division |
| Year | 2015 |
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| Summary | In this study, we first collected domestic and foreign LED streetlight promotion cases and development trends. The characteristics of and visual responses of LEDs, mercury lamps, high-pressure sodium vapor lamps, and metal halide lamps when used for road lighting were investigated. We referenced domestic and foreign design criteria for road lighting and outdoor practical light source trends. After selecting a representative sample of national and provincial roads, we designed various lighting quality performance parameters and weighted values based on road characteristics and traffic flow to analyze the feasibility of using LED streetlights on national and provincial roads.
In addition, this study collected promotion schedules, objectives, and maintenance experiences of current LED streetlight demonstrations in Taiwan. We interviewed road authorities, city and county governments, and different sectors of the economy to gather experiences from the use of LED streetlights. Additionally, the National Freeway Bureau and the Directorate General of Highways were visited to obtain road lighting specifications from different service segments of national and provincial roads, such as illuminance, luminance, uniformity, and glare value. Based on the collected data on road conditions, lighting specifications, and streetlight performance, we used the lighting software DIALux to perform simulation analysis of road lighting and to examine the parallel displacement conditions of the LED lamps. Assuming road lighting quality conditions no worse than those of the lighting on the original road designs, we compared the lifetime costs of LED streetlights and other lamps. This gave us the cost-effectiveness values for installing LED streetlights needed for this project.Finally, based on the results described above and in accordance with the recommendations of the national and provincial road authorities, we developed a test plan to verify LED streetlights in 2014. This plan covers the site selection, number and types of lamps to install, monitoring, maintenance, operation, opinion surveys, and budget requirements needed to implement this project fully. |
| Post date | 2015/05/18 |
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